Pure Gases
BOC offers a wide range of pure gases to suit your application. All pure gases are classified by grade, so you can be certain that the purity level suits your individual requirements.

The first digit of the classification indicates the number of nines purity (for example, N3.0 = 99.9% purity) and the second digit is the number following the last nine (for example N4.8 Nitrogen has a guaranteed minimum purity of 99.998% and a corresponding maximum impurity level of 0.002% or 20ppm).

Our HiQ high purity gases are suitable for any application where impurity control is important, for example: chromatography, process controls, pharmaceutical applications or gas detection.

Air Gases

Rare Gases

Rare gases such as Neon, Krypton and Xenon are held in specific cylinder packages and amounts. Alternative units can be sourced upon request. Please contact the special gases sales office on 0800 02 0800 for further information.

Electronic Gases

Electronic Gases, such as halocarbon products (H14, H23, H116, H218), Sulphur Hexafluoride and DuPont materials (such as Silane, Dichlorosilane and other Silane derivatives) can be sourced as pure materials, as can Etchant and corrosive gases such as Boron Trifluoride and Hydrogen Chloride on request.